Boats and Streams
Team Careers360, 17 Sep 2019

Boats and Streams - The other important topic is Boats and Streams is also an extended version of Time, Speed & Distance. The questions related to this chapter hold a good number in all the competitive examinations. The key to crack this chapter is, that one should go through the basic concepts of Time, Speed and Distance and then should relate this with Boats and Streams. The only difference of Boats and Streams with Time, Speed and Distance is of terminologies. Some of the important terminologies and concepts related to boats & streams are as follows:-

Condition

Concept Related to Condition

When a boat is going with the stream (Downstream)

  • The relative speed to cover the distance would be the sum of the speed of boat & speed of the stream.

When a boat is going against the stream (Upstream)

  • The relative speed to cover the distance would be the difference in the speed of boat & speed of the stream.

When the distance covered by boat is downstream is equal to the distance covered by boat in upstream

  • (Time taken by boat in downstream): (Time taken by boat in upstream) = (Upstream Speed): (downstream Speed)


How to prepare boats and streams?

  • First of all go through time, speed, distance and trains before coming to boats & streams.

  • Learn and imagine the things in upstream and downstream.

  • Learn some tricks related to specific kind of questions repeatedly asked by the examination bodies.

  • Go through some puzzles related to the concept of the topic for having a great imagination and understanding.

  • Take a look at questions appeared in the past related to boats and streams.

  • Take a mock test for having great concept clarity.

Practice questions of Boats and Stream

Q 1. A man can row downstream at the rate of 14 km/hr and upstream at 5 km/hr. Find man’s rate in still water.

  1. 9.5 kmph

  2. 6 kmph

  3. 9 kmph

  4. 5 kmph

  5. 8 kmph

View Solution


Q 2. A man row upstream 16 km and downstream 27 km taking 5 hours each time. What is the velocity of current?

  1. 3.2 kmph

  2. 2.1 kmph

  3. 1.1 kmph

  4. 8 kmph

  5. 2 kmph

View Solution


Q 3. A man can row 4.5 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of stream.

  1. 6 kmph

  2. 1.5 kmph

  3. 2.5kmph

  4. .5 kmph

  5. 3.5 kmph

View Solution


Q 4. The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance traveled downstream in 12 minutes is

  1. 3.6 km

  2. 2.4 km

  3. 4.2 km

  4. 5 km

  5. 1.2 km

View Solution


Q 5. The current of stream runs at 1 kmph. A motor boat goes 35 km up stream and back again to the starting point in 12 hours. The speed of the motor boat is?

  1. 6 kmph

  2. 5.5 kmph

  3. 9 kmph

  4. 8.5 kmph

  5. 7 kmph

View Solution


Q 6. A man can row 5 kmph in still water. If the the river is running at 1 kmph, it takes him 75 minutes to row to a place and back. How far is the place?

  1. 3 km

  2. 2.5 km

  3. 2 km

  4. 8.5 km

  5. 4 km

View Solution


Q 7. A man can row upstream at 7 kmph and downstream at 10 kmph. Find man’s rate water and rate of current?

  1. 4, 1.5 kmph

  2. 8.5, 1.5 kmph

  3. 3, 2.5 kmph

  4. 3.5, 2.5 kmph

  5. 2.5, 1.5 kmph

View Solution


Q 8. A man can row 9\frac{1}{3} kmph in still water and he finds that it takes him thrice as much time to row up than as to row down the same distance in river. The speed of the current is?

  1. 5 kmph

  2. 4\frac{2}{3}kmph

  3. 4\frac{2}{5}\:kmph

  4. 4\frac{1}{4}kmph

  5. 5\frac{1}{4}kmph

View Solution


Q 9. A boat travels upstream from B to A and down strean from A to B in 3 hours. If the speed of boat in still is 9 kmph and the speed of the current is 3 kmph, the distance between A and B is?

  1. 10 km

  2. 12 km

  3. 11 km

  4. 8.5 km

  5. 13 km

View Solution


Q 10. A man row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is?

  1. 5 kmph

  2. 2.5 kmph

  3. 10.5 kmph

  4. 4 kmph

  5. 4.2 kmph

View Solution


Q 11. A man rows 13 km upstream in 5 hours and also 28 km downstream in 5 hours. The velocity of the stream is.

  1. 1.5 kmph

  2. 2 kmph

  3. 4.5 kmph

  4. 3 kmph

  5. 2.5 kmph

View Solution


Q 12. The current of a streams runs at 1 kmph . A motor boat goes 35 km upstream and back again to the starting point in 12 hours. The speed of the motor boat in the still water is?

  1. 6 kmph

  2. 7 kmph

  3. 9 kmph

  4. 5 kmph

  5. 8 kmph

View Solution


Q 13. A man can row a boat at 10 k mph in still water. If the speed of the stream is 6 kmph the time taken to a row distance of 80 km down the stream is?

  1. 4 hours

  2. 5 hours

  3. 10 hours

  4. 20 hours

  5. 8 hours

View Solution


Q 14. If a man rows at 6 k mph in still water and 4.5 km against the current, then his along the current is?

  1. 7.5 kmph

  2. 6 km

  3. 5.5 kmph

  4. 9 km

  5. 8 km

View Solution


Q 15. In one hour, a boat goes 11 km along stream & 5 km against the stream. The speed of boat in still water in kmph is:

  1. 7

  2. 5

  3. 8

  4. 9

  5. 3

View Solution


Q 16. A man rows downstream 32 km & 14 km upstream. If he takes 6 hr to cover each distance. The the velocity of current is:

  1. 2.5 kmph

  2. 1 kmph

  3. 1.5 kmph

  4. 2 kmph

  5. 0.5 kmph

View Solution


Q 17. A boat running downstream covers a distance of 16km in 2 hr & upstream in 4 hr. What is the speed of boat in still water

  1. 5 kmph

  2. 6 kmph

  3. 8 kmph

  4. 10 kmph

  5. 4 kmph

View Solution


Q 18. A boatman goes 2 km against the current in 1 hr & goes 1 km along the current in 10 min. How long will it take to go 5km in still water?

  1. 40 min

  2. 60 min

  3. 75 min

  4. 30 min

  5. 90 min

View Solution


Q 19. A man takes twice as long to row a distance against the stream as to row the same distance in favour of stream. The ratio of speed of boat in still water and the steam is:

  1. 2:1

  2. 3:1

  3. 5:2

  4. 3:2

  5. 2:3

View Solution


Q 20. A boat running upstream takes 8 hr 48 min to cover a certain distance, while it takes 4 hrs to cover the same distance running downstream. What is the ratio b/w speed of boat & speed of water current?

  1. 2:1

  2. 4:1

  3. 8:3

  4. None

  5. 3:2

View Solution


Q 21. If a boat goes 7km upstream in 42 min & speed of stream is 3kmph. Then what is the speed of boat in still water?

  1. 4.2 kmph

  2. 9 kmph

  3. 13 kmph

  4. 3.5 kmph

  5. 21 kmph

View Solution


Q 22. A man can row at 5 km ph in still water. If the velocity of current is 1 kmph& it takes him 1 hr to row to a place & come back, how far is the place

  1. 2.4 km

  2. 2.5 km

  3. 4.2 km

  4. 3.6 km

  5. 3 km

View Solution


Q 23. A boat takes 19 hr to travel downstream from A to B & coming back to C, mid-way b/w A & B. If the velocity of stream is 4 kmph& speed of boat in still water is 14 kmph. What is the distance b/w A & B?

  1. 160 km

  2. 180 km

  3. 220 km

  4. 170 km

  5. 120 km

View Solution


Q 24. A man can row at 5 k mph in still water. If the velocity of current is 1 kmph& it takes him 1 hr to row to a place & come back, how far is the place

  1. 4.2 km

  2. 2.5 km

  3. 3 km

  4. 3.6 km

  5. 2.4 km

View Solution


Q 25. Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 k mph. A man rows to a place at a distance of 4864 km and comes back to the starting point. The total time taken by him is:

  1. 250 hours

  2. 350 hours

  3. 1400 hours

  4. 1010 hours

  5. 700 hours

View Solution

Preparation
Never miss exam and college updates Login
Top
The question have been saved in answer later, you can access it from your profile anytime. Access now

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

Careers360 App
150M+ Students
24,000+ Colleges
500+ Exams
1500+ E-books